Free-Body Diagrams


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Why is force a vector quantity?

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1. A book sitting on a table is moved horizontally. Describe the relationship of unbalanced forces (the applied force and friction).

2. What do free-body diagrams represent?

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About This Quiz & Worksheet

Forces in free-body diagrams are numerous by design, and this quiz and worksheet combo will help you test your understanding of how to represent these many forces in free-body diagrams. Some of these practice questions will test your understanding of vector quantities, balanced and unbalanced forces, and the purpose of free-body diagrams.

Quiz & Worksheet Goals

In these assessments, you'll be tested on:

  • Characteristics of vector qualities
  • Differences between balanced and unbalanced forces
  • What is represented in a free-body diagram
  • Characteristics of equilibrium

Skills Practiced

This quiz and worksheet will allow you to test your skills in the following area:

  • Reading comprehension - ensure that you draw the important information from the related lesson on representing forces in free-body diagrams
  • Making connections - use your understanding of the concepts of force, equilibrium, and free-body diagrams
  • Defining key concepts - ensure that you can accurately define main phrases, such as free-body diagram, balanced/unbalanced forces, and equilibrium

Additional Learning

To learn more about forces in free-body diagrams, please review the accompanying lesson entitled Free-Body Diagrams. This lesson covers the following objectives:

  • Define free-body diagrams
  • Define how to represent forces in these diagrams
  • Understand the relationship between balanced and unbalanced forces
  • Differentiate between those two types of forces
  • Understand how equilibrium is affected by these forces